NSW Y12 Maths - Advanced Bivariant Data Analysis Line of Best Fit

Resources for Line of Best Fit

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Line of Best Fit Theory

From a scatter plot it there seems to be a linear correlation we can determine a regression line on line of best fit. We can use this line to make predictions.\\  To determine the line of best fit from the set of data \[ (1,7),(2,6),(3,4),(4,1) \text {. } \] - Place your calculator in statistical mode\\ - Clear the statistical memory\\ - Enter the data\\ - Calculate the gradient and \(y\)-intercept\\ - Change back to normal mode\\  In this example \(y=-2 x+9.5\).\\

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Videos

Videos relating to Line of Best Fit.

  • Line of Best Fit - Video - Scatter Plots and Lines of Best Fit By Hand

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  • Line of Best Fit - Video - Line of best fit with your calculator - CASIO

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  • Line of Best Fit - Video - Least squares line of best fit - CASIO

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